A hybrid atomic memory using GEM for write-in and EIT for readout, and the reverse, maps a pulse's spectrum to its arrival time and its timing to output frequency.
Hybrid quantum memory leveraging slow-light and gradient-echo duality
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abstract
We demonstrate a hybrid quantum memory that combines Gradient Echo Memory (GEM) and Electromagnetically Induced Transparency (EIT) protocols for reversible mapping between light and atomic coherence. By leveraging GEM and EIT complementarity, we realize time-to-frequency and frequency-to-time conversion mechanisms for spectro-temporal modes. This capability provides a versatile tool for quantum communication, where coherent frequency-time conversion enhances network interoperability. In addition, the protocol may enable fundamental studies of atomic coherence, including investigations of Rydberg polaritons and mapping of single Rydberg excitations and ionic impurities.
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Hybrid quantum memory leveraging slow-light and gradient-echo duality
A hybrid atomic memory using GEM for write-in and EIT for readout, and the reverse, maps a pulse's spectrum to its arrival time and its timing to output frequency.